NEC NP-NC900C-A, Service Manual

Page: 40 / 199

4-30
TROUBLESHOOTING
“Confidential, Do Not Duplicate without written authorization from NEC.”
J200 to Lens Up/Down Motor
Down signal return path 1 f Down signal return path
Down 2 g Motor Control signal for Lens position down (12V / 0V)
Up 3 g Motor Control signal for Lens position up (12V / 0V)
Up signal rerurn path 4 f Up signal return path
ZOOM In 1 f ZOOM IN control signal (12V / 0V)
– 2
f
–
ZOOM Out 3 g ZOOM OUT control signal (12V / 0V)
Focus Near 1 f FOCUS NEAR control signal (12V / 0V)
Focus Far 2 f FOCUS FAR control signal (12V / 0V)
Left signal return path 1 f Left signal return path
Left 2 g Motor Control signal for Lens position left. (12V / 0V)
Floating 3 – Floating
Right 4 g Motor Control signal for Lens position Right. (12V / 0V)
Right signal return path 5 f Right signal return path
OSP_OUT 1 g Shutter out off the optical path.
OSP_IN 2
g
Shutter out off the optical path.
SHTR_O_C 3 f No used
GND 4 – GND
E_Q_ZOOM 1 g Zoom Encoder Signal A
F_I_ZOOM 2 g Zoom Encoder Signal B
GND 3 – GND
Vin 4 g 12V
F_Q_FCS 5 g Focus Encoder Signal A
F_I_FCS 6 g Focus Encoder Signal B
GND 7 – GND
Vin 8 g 12V
– 9 – –
J201 to Lens Left/Right Motor
J204 ZOOM IN/OUT
J207 FOCUS NEAR/FAR
J206 SHUTTER OPEN/CLOSE
J205 Encoder ZOOM In/Out ; Encoder Focus Near/Far